Year	hectares
1961	1295000
1962	1305000
1963	1310000
1964	1313000
1965	1318000
1966	1324000
1967	1330000
1968	1332000
1969	1328000
1970	1330000
1971	1333000
1972	1368000
1973	1378000
1974	1384000
1975	1413000
1976	1438000
1977	1503000
1978	1504000
1979	1494000
1980	1484000
1981	1481000
1982	1476000
1983	1467000
1984	1464000
1985	1455000
1986	1451000
1987	1441000
1988	1431000
1989	1446000
1990	1462000
1991	1492000
1992	1515000
1993	1683000
1994	1650000
1995	1600000
1996	1600000
1997	1520000
1998	1520000
1999	1468000
2000	1068000
2001	1068000
2002	1068000
2003	1068000
2004	1050000
2005	1050000
2006	1050000
2007	1050000
2008	1018000
2009	1018000
2010	1018000
2011	1018000
2012	1018000
2013	1018000
2014	1018000
2015	1018000
2016	1018000
2017	1018000
2018	1018000
2019	1018000
2020	1018000
2021	1018000